改善石灰石硅酸盐水泥耐腐蚀性能的研究

探讨了在一定浓度的MgSO4溶液中，一定温度环境下石灰石硅酸盐水泥受侵过程，采用矿渣微粉部分替代石灰石微粉或水泥可以延迟或阻止侵蚀反应，对水泥石定期目测观察，并对某些样品进行XRD和DSC分析，证实侵蚀产物为水化碳硫硅酸钙，Ca(OH)2参与侵蚀反应，揭示了矿渣微粉提高石灰石硅盐盐水泥耐硫酸盐溶液侵蚀的机理。

Study on improving the corrosion resistant property of Portland limestone cement

The corrosion of Portland lime stone cement pastes in the certain MgSO 4 solution at certain room temperatur e was stud-ied.The corrosion can be re sisted or delayed by partial replacing limestone powder or cement with fine powd er of slag.The pastes were visually inspected periodically.Some samples were e xamined by X-ray diffraction and DSC,so the corrosion resis-tant mechanism o f Portland limeston e cement by addition of fine powder of slag was revealed by the fact that Portalandite was a reactant rather than a product durin g the for mation of thaumasite.